Adhesive composition for organic fiber, method for treating organic fiber, organic fiber, and tire

Abstract

An object of the present disclosure is to provide an adhesive composition for an organic fiber which has excellent heat-resistant adhesiveness that allows an organic fiber and a rubber composition to maintain high adhesive force even when being exposed to high temperatures. An adhesive composition for an organic fiber contains: (a) an epoxy compound that is a sorbitol polyglycidyl ether and has a chlorine content not greater than 9.6% by weight; and (b) a blocked isocyanate.

What is claimed is: 
     
         1 . An adhesive composition for an organic fiber, the adhesive composition containing:
 (a) an epoxy compound that is a sorbitol polyglycidyl ether and has a chlorine content not greater than 9.6% by weight; and   (b) a blocked isocyanate.   
     
     
         2 . The adhesive composition for the organic fiber according to  claim 1 , wherein the organic fiber is at least one type selected from the group consisting of polyester fibers, nylon fibers, aramid fibers and rayon fibers. 
     
     
         3 . A method for treating an organic fiber comprising the steps of:
 (1) treating the organic fiber with the adhesive composition for the organic fiber according to  claim 1  as a first treatment agent; and   (2) treating the organic fiber treated with the first treatment agent, with a second treatment agent containing a resorcin-formalin-rubber latex (RFL).   
     
     
         4 . The method for treating the organic fiber according to  claim 3 , wherein the organic fiber is at least one type selected from the group consisting of polyester fibers, nylon fibers, aramid fibers and rayon fibers. 
     
     
         5 . An organic fiber treated with the adhesive composition for the organic fiber according to  claim 1 . 
     
     
         6 . A tire comprising at least one or more members selected from the group consisting of a band, a carcass ply, a chafer, and a filler that include the organic fiber according to  claim 5 . 
     
     
         7 . A tire comprising a band, wherein
 the band includes a rubber composition and an organic fiber treated with the adhesive composition for the organic fiber according to  claim 1 , and   peeling resistance between the rubber composition and the organic fiber is not less than 140 N/25 mm.   
     
     
         8 . The tire according to  claim 7 , wherein the organic fiber is at least one type selected from the group consisting of polyester fibers, nylon fibers, aramid fibers, and rayon fibers. 
     
     
         9 . The tire according to  claim 7 , wherein the organic fiber is at least one type selected from the group consisting of polyethylene terephthalate (PET) fibers, polyethylene naphthalate (PEN) fibers, and aramid fibers. 
     
     
         10 . The tire according to  claim 7 , wherein the organic fiber is subjected to an immersion treatment in the adhesive composition for the organic fiber. 
     
     
         11 . The tire according to  claim 7 , wherein
 the rubber composition contains a rubber component, and   an amount of a polyisoprene-based rubber in 100% by weight of the rubber component is 0 to 70% by weight.